TDA8424 Datasheet, PDF (6/23 Pages) NXP Semiconductors – Hi-Fi stereo audio processor; I2C-bus

Philips Semiconductors
Hi-Fi stereo audio processor; I²C-bus
Product specification
TDA8424
Table 1 Second byte after module address MAD
128
64
32
16
MSB
FUNCTION
Volume left
Volume right
Bass
Treble
Switch functions
7
6
5
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
4
2
1
LSB
3
2
1
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
subaddress SAD
Definition of 3rd byte
A third byte is used to transmit data to the TDA8424. Table 2 defines the coding of the third byte after module address
MAD and subaddress SAD.
Table 2 Third byte after module address MAD and subaddress SAD
MSB
LSB
FUNCTION
Volume left
VL
Volume right
VR
Bass
BA
Treble
TR
Switch functions S1
7
6
5
4
3
2
1
0
1
1
V05
V04
V03
V02
V01
V00
1
1
V15
V14
V13
V12
V11
V10
1
1
1
1
BA3
BA2
BA1
BA0
1
1
1
1
TR3
TR2
TR1
TR0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MU
EFL
STL
ML1
ML0
1
Truth tables
Tables 3, 4 and 5 are truth tables for the switch functions
Table 3 Mode selector
Stereo
Sound A
Sound B
FUNCTION
Note
1. Must be set to logic 1
ML1
ML0
IS
1
1
1⁽¹⁾
0
1
1⁽¹⁾
1
0
1⁽¹⁾
September 1992
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